Telephone

1. The telephone is a telecommunication device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more.

2. It is one of the most common household appliances in the world today. Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost anyone.

3. The telephone handles two types of information: signals and voice, at different times on the same twisted pair of wires. The signaling equipment consists of a bell to alert the user of incoming calls, and a dial to enter the phone number for outgoing calls.

4. When a phone is inactive (on hook), its bell, beeper, flasher or other alerting device is connected across the line through a capacitor. The inactive phone does not short the line, thus the exchange knows it is on hook and only the bell is electrically connected. When someone calls this phone, the telephone exchange applies a high voltage pulsating signal, which causes the sound mechanism to ring, beep or otherwise alert the called party.

5. When that user picks up the handset, the switchhook disconnects the bell, connects the voice parts of the telephone, and puts a resistance short on the line, confirming the phone has been answered and is active. Both being off hook, the signaling job is complete.

Задание 9. Письменно ответьте на вопросы.

1. What is a telephone?

2. How do the most telephones operate?

3. What types of information do the telephones handle?

Вариант 3

Задание 1. Перепишите предложения. Замените модальные глаголы их эквивалентами и поставьте их в прошедшую и будущую форму времени Simple, активного залога; определите функцию модального глагола и переведите предложение.

1. I can smell something burning.

2. You must not discuss it with children.

3. There may be two or more batteries in the remote control.

Задание 2. Перепишите и письменно переведите предложения, подчеркните инфинитив, определите его форму и функцию.

1. To play chess was his greatest pleasure.

2. He is very forgetful, but he doesn’t like to be reminded of his duties.

3. Mary was last to come.

Задание 3. Перепишите и письменно переведите предложения, подчеркните и определите тип инфинитивного оборота.

1. The manager told the secretary to type three copies of the document.

2. He wanted us to visit the art exhibition.

3. He is sure to enjoy this trip.

Задание 4. Перепишите и письменно переведите предложения, подчеркните причастия I и II; определите их формы и функции.

1. This is a church built many years ago.

2. The stolen money was returned to the bank.

3. Entering the room, she turned on the light.

Задание 5. Перепишите и письменно переведите предложения, укажите тип причастного оборота.

1. I heard him coming up the stairs slowly.

2. Everything being ready, we could use it in our work.

3. He showed us a list of newly published books.

Задание 6. Перепишите и письменно переведите предложения. Подчеркните герундий, определите его форму и функцию.

1. Miss Trotwood was in the habit of asking Mr. Black his opinion.

2. Taking a cold shower in the morning is very healthy.

3. Avoid making mistakes if you can.

Задание 7. Перепишите и письменно переведите предложения, обращая внимание на правило согласования времен.

1. They said nobody noticed her absence.

2. I knew that he was busy.

3. The boy said he had scarcely enough money to return home.

Задание 8. Прочитайте и письменно переведите текст.